Table 3.

Correlation Between dEQ-5D Utility Score (y) and dNRS Δ (x) by Causal Disease

	n	Slope (β)	Pearson’s correlation coefficient (r)	p
Overall	710	−0.045	0.531	<0.0001
Major the causal disease of pain (multiple allowed)
Osteoarthritis	182	−0.044	0.542	<0.0001
Lumbago	285	−0.042	0.457	<0.0001
Rheumatoid arthritis	29	−0.037	0.498	0.0060
Neck, shoulder and arm syndrome	44	−0.046	0.552	0.0001
Postherpetic neuralgia	54	−0.037	0.468	0.0004
Periarthritis scapulohumeralis	46	−0.057	0.619	<0.0001
Spinal stenosis	61	−0.041	0.660	<0.0001
Disk herniation	30	−0.057	0.698	<0.0001
Others	233	−0.046	0.601	<0.0001

dEQ-5D denotes change in EuroQol-5D, dNRS change in numeric rating scale